This photo taken on Feb. 26, 2025 shows a hairpin from Tang Dynasty (618-907) at a relics museum inside the Xi'an Xianyang International Airport in Xi'an, northwest China's Shaanxi Province. A museum for cultural relics unearthed at different phases during the construction of Xi'an Xianyang International Airport, the largest one of its kind in northwest China, opened to the public at the airport on Wednesday. (Xinhua/Shao Rui)